Velopment syndicate



(No Model.) 4 Sheets-Sheet 1.

M. H. C. 8v R. E. OISHANN. MACHINE PoR BBNDING 0R SETTING SHIPSFRAMBS.

No. 581,375. Patented Apr. 27, 1897.

(No Model.) 4 Sheets-Sheet 2. M. H. C. 8v R. E. C..SHANN. MACHINE FDRBENDING 0R SETTING SHIPSFRAMBS.

Patented Apr. 27, 1897*.

L11/emile; 71S.'

(No Model.) 4 Sheets-Sheet 3.

M. H. C. 8v R. E. C. SHANN.. MACHINE POR BENDING 0R SETTING SHIPSFRAMES.

Patented Apr. 27, 1897. ,Af

(No Model.) 4 Sheets-Sheet 4.

M. H. C. 8v R. E. C. SHANN.

MACHINE POR BBNDING 0R SETTING SHIPS FRAMES. No. 581,375. PatentedApr.27, 1897.

,L I I l UNITED STATES PATENT OFFICE.

MONTAGUE HERBERT CHURCHILL SHANN AND RICHARD ERNEST CHURCHILL SIIANN, OFLONDON, ENGLAND7 ASSIGNORS TO THE SIIANN ROLLS`DE- VELOPMENT SYNDICATE,LIMITED, OF SAME PLACE.

MACHINE FCR BENDINC o R SETTING SHIPS FRAMES.

SPECIFICATION forming part of Letters Patent No. 581,375, dated April2'?, 1897.

Application iiled September 28, 1896. Serial No. 607,275. (No model.)

of rolls, each set being composed of two or more rollers and capable ofrotating about an axis lying in and parallel with the channel or passagethrough which the metal to be bent is passed, in order that the metalmay be 2o twisted about its own axis. One of the sets of rolls is alsoadjustable in a direction transverse to that in which the metal is fedthrough it, in order to be able to give the metal the desired curvaturealong its length. Certain of 2 5 the sets are also pivoted to rotateabout an axis transverse to the channel or passage aforesaid, in orderthat the plane in which their axes are contained may always be normal tothe curve to which the metal is being 3o bent, so that the dimensions ofthe channel or passage-way in the several sets of rolls for taking agiven section of bar are constant and need no alteration for differingcurvatures of the bar, whereas if the plane of the axes were 3 5 notkept normal to the curve, but allowed to lie aslant across it, the gapwould need to be increased in width in the plane of curvature. In theaccompanying drawings, Figure lis a side elevation, partly in sectionand with 4o parts broken away, of one construction of metal-bendingmachine according to this invention. Fig. 2 is a transverse section onthe line 2 2 of Fig. l. Fig. 3 is an end view of the machine. Fig. 4 isa diagrammatic plan view thereof; and Fig. 5 is a View, hereinafterdescribed, of a detail of the machine. u Like letters indicate likepart-s throughout the drawings.

The direction in which the metal bar to be bent traverses the machine isindicated by the arrow in Fig. l.

The framing of the machine is formed by two upright standards A,arranged parallel to and facing each other on a box bed-plate A'. Onkthe internal faces of these standards are formed longitudinal guides B,in which engages a casing C, in the center of which is a passage D,through which the metal under treatment passes. This passage extendsright through the machine, as will hereinafter appear. Within the casingC the framingE of one set of rolls is free to slue, this framing beingcarried upon trunnions F, supported in bearings in the casing. The rollsof this set are preferably four in number, two of which, G, Fig. 2, inthe position in which they are now shown are horizontal and two, I-I,vertical. These all turn freely in their bearings in the framing E andcarry pinions G II,which engage with one another, preferably in themanner shown in Fig. 2,the whole being driven by a suitable motorthrough the driving-shaft of the framing E. Although there are fourrolls in this set and in the other sets also, a set may be constitutedby any other number of rolls suitably arranged.

The casing C has an extension C formed on it terminating in lugs C2,which form bearings for a worm L, with which engages a toothed segmentE', formed upon the lower part of the framing E, by means of which wormand segment the whole framing E, carrying the set of rolls, may be sluedas desired about an axis which is in and parallel with the channelthrough which the metal to be bent is passed.

A plate A2 is bolted to the two frame-standards A opposite one end ofthe guides B, and in the center of this plate is a screw-threaded bossA3, within which works a horizontal screw K, on the outer end of whichis a handle K', while the inner end is formed with a cheesehead K2,which engages with the casing C, carrying the bearings for the frame E.By rotation of this screw the casing C, carrying -ihe frame E and set ofrolls GH, maybe moved J, which rests in bearings in the upper part I inthe guides B in a direction transverse to that in which the metal is fedthrough the machine.

The bar, before and after passing between the rolls G II, hereinbeforedescribed, is operated upon by other sets of rolls, one set in front ofand another behind the rolls G II. One of the sets, comprising rollers MN, Fig. 3, will now be described together with its appurtenances, theother set, comprising the rollers O Pand its appurtenances, bein gsimilar in construction and operation do not need to be speciallydescribed. In the drawings, Fig. l, one set is shown in section and theother in elevation.

Q is a frame with trunnions Q', which latter are received in lugs AL1 onthe frame-stan dards A, so that the frame Q can turn freely about itsvertical axis. In this frame is another and smaller frame R, in whichare j ournaled rollers M and N, similar, respectively, to the rollers Gand II in the frame E. On the frame R is a toothed segment R, engagi ingwith a worm S, journaled in bearings in the frame Q and provided with ahand-wheel S. The frame R has trunnions R2, which rest in bearings inthe frame Q and are the same plane as the trunnions F of the frame E.Byrotating the hand-wheel S the frame R with its rollers M N can berotated on its trunnions R2 about an axis in and parallel with thechannel through which The metal to be bent is passed, like the frame Eaforesaid. Thus the set of rolls M N have two adjustments about the barbeing bent, one adj ustment being employed in curving the bar and theother in twisting it, the former occurring automatically, inasmuch asthe frame Q is quite free to turn about its vertical axis.

It desired, the worms L and S may be supported in any usual orconvenient manner which will permit of their being moved into and out ofgear with the toothed racks E and R', respectively.

By means of the screw K the framing E can be adjusted transversely, sothat its eentral opening is brought into or out of line with the centralopenings of the other two sets of rolls and the bar can pass straightthrough these openings or be bent into a curve, which, according to thearrangement of the machine in the present instance, will lie in orapproximately in the horizontal plane. If the bar is being curved in thehorizontal plane,each frame Q turns automaticallyabout its verticalaxis, so that whatever be the amount of curvature the axes of theseveral rolls of all the sets will always lie in planes which are normalto the curve. This is particularly advantageous for the reasonshereinbefore set forth and is indicated in the diagram Fig. et. If theframes E and R be given, by means of the toothed segments E R', angularadjustment about the axis of the bar under treatment, that bar will begiven a twist about its own axis, and the amount of this twist may bevaried, as desired, in the length of the bar by suitably varying theangular adjustment of the frames R and E. The adjustments of each frameare quite independent of those of its neighbors. Pointers and graduatedscales may be employed to insure exactitude in these adjustments. Inpractice it is found advisable to impart the twist to the bar first andto give it such curvature as may be desired afterward, and not toattempt to curve and twist the bar simultaneously. By this machineship-bars can be so bent that when in place the web of the section willlie throughout their length at right angles to the skin-plating, nomatter how curved the latter may be. This result, which has never beforebeen cheaply and conveniently effected, enables reverse-frames of anydesired form to be readily made in one piece with the main frames.

In the accompanying drawings the passage way between the rolls of theseveral sets is shown as being of H form, which enables T, L, and Hsection-bars to be dealt with; but, if desired, the outer circumferenceof each roll can be constituted in part by a removable ring or rings,and by employing removable rings of appropriate section the profile ofeach roller is varied, and the passage-way between the rolls can bealtered, as desired, to suit bars of different cross-sectional form anddimensions. Such a device is illustrated in Fig. at, wherein II is thebody of the roll in elevation and H2 are removable rings adapted, in theexample shown, for the treatment of T-bars. The rings may be loose ormay be fixed to the body II by screws. In the drawings one of them isshown as secured by a screw IIS, the other being free to turn.

For one of the frames Q with its sets of rolls fixed guides for the barmight in certain cases be substituted, although that would not be thepreferred form of the machine.

The machine may be employed only to twist bars or only to curve them. Inthe former case the devices for giving adjustment to the roll-framesacross the passage for the bar would be omitted, and in the latter casethe devices for giving rotary adjustment to the frames would bedispensed with.

Instead of making only the center set of rolls transversely adjustablethe other sets may be similarly adjustable as well as or instead ofthem.

Ve claiml. A metal-bending machine characterized by two or more sets ofrolls (comprising the rolls G H M and N) each set being capable ofrotating about the passage-way D through which the metal to be bent ispassed, in order that the metal may be twisted about its own axis, thesets of rolls being also adjustable relatively to each other in adirection trans verse to that in which the metal is fed through themachine in order to be able to give the metal the desired curvaturelengthwise, certain of the sets (rolls M and N) being also pivoted torotate about an axis transverse to IOO IIO

that channel in order that the plane in which the roller-axes of thosesets are contained may always be normal to the curve to which the metalis being bent, so that the gap or passage in each set needs no variationfor differences in the curvature of the bar being bent.

2. A metal-bending machine characterized by two or more sets of rolls(comprising the rolls G H M and N) the sets of rolls being adjustablerelatively to each other in a direction transverse to that in which themetal is fed through the machine, in order to be able to give the metalthe desired curvature lengthwise, certain of the sets (rolls `yM and N)being also pivoted to rotate about an axis transverse to that channel inorder that the plane in which the roller-axes of those sets arecontained may always be normal to the curve to which the metal is beingbent.

3. A metal-bending machine characterized by two or more sets of rolls(comprising the rolls G H M and N) each set being capable of rotatingabout the passage-way D through which the metal to be bent is passed, inorder that the metal may be twisted about its own axis, the sets ofrolls being also adjustable relatively to each other in a directiontransverse to that in which the metal is fed through the machine inorder to be able to give the metal the desired curvature lengthwise.

4. In a metal-bending machine, the combination with the frame-standards,the longitudi nal guides formed on the inner faces of said standards,the casing mounted to slide on said guides, the roller-frame carried bysaid casing, the rolls mounted in said frame, the screw for moving thecasing in its guides, and the rolls carried by frames mounted in theframestandard; substantially as described. Y

5. In a metal-bending machine, the combination with frame -standards,the casing mounted to slide longitudinally on the inner faces of saidstandards, the roller-frame carried by trunnions supported in ybearingsin the casing, the rolls carried by the frame, the extension formed onthe casing, the worm mounted in bearings in said extension, the toothedsegment formed on the lower part of the roller-frame, with which theworm en gages, whereby the frame may be turned on the trunnions, as andfor the purpose set forth.

G. In a metal-bending machine, the combination with the frame-standards,the casing mounted on said standards, the roller-frame carried thereby,the rolls in said frame, theV frames Q mounted to turn on a verticalaxis in the frame, standards in front of and behind said iirst mentionedrolls, the rollerframe carried by trunnions supported in bearings inframes Q, the worm journaled in bearings inv said frame, the toothedsegments on the roller-frame, with which the worm engages, whereby saidroller-frame may be rotated on the trunnions; substantially as and forthe purpose set forth.

In witness whereof we have hereto set our hands in the presence of thetwo subscribing witnesses.

MONTAGUE HERBERT CHURCHILL SHANN.

RICHARD ERNEST CHURCHILL SHANN.

Witnesses:

ALFRED J. BoUL'r,

HARRY B. BRIDGE.

